대한건축학회논문집:구조계 (Journal of the Architectural Institute of Korea Structure & Construction)

  • 제34권6호
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  • Pages.29-34
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  • 2018
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  • 1226-9107(pISSN)
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  • 2384-1788(eISSN)
대한건축학회 (Architectural Institute of Korea)
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시멘트 인수검사 시 액체밀도계법에 의한 분말도 품질 신속평가 가능성 분석

A Feasibility Analysis of Rapid Acquisition Test for Cement Fineness using Hydrometer

  • 한천구 (청주대학교 건축공학과) ;
  • 김영태 (청주대학교 건축공학과)
  • 투고 : 2018.04.09
  • 심사 : 2018.06.18
  • 발행 : 2018.06.30
⟨ 이전 논문 다음 논문 ⟩

초록

In this research, regarding the cement supplied to ready mixed concrete plant, the feasibility of rapid acquisition test for cement fineness using hydrometer which used for early strength evaluation of concrete was analyzed. Additionally, regarding the rapid test with hydrometer control factors were provided. As a result of analysis, quality control using hydrometer was possible with the regressive equation obtained in five minute between density of suspension and fineness of cement powder. As the control factors, dispersing admixture, replacing kerosene as a medium, and temperature of cement and water were evaluated. According to the control factor evaluation, the tap water was optimum as a medium and calibration of keeping the temperature of water to $20^{\circ}C$ or correction factor was needed for density results. Finally, it is considered that the suggested rapid quality evaluation method using hydrometer is cheaper and easier method than currently used Blaine test.

키워드

과제정보

연구 과제 주관 기관 : 한국연구재단

참고문헌

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